Module casts 

Utilities for casting scalar literals to different data types

This module contains functions for casting ScalarValue literals to different data types, originally extracted from the optimizer’s unwrap_cast module to be shared between logical and physical layers.

Functions

is_date_narrowing_cast

Returns true when casting a date column from from_type to to_type narrows Date64 (milliseconds) to Date32 (days).

is_supported_type

Returns true if unwrap_cast_in_comparison supports this data type

is_timestamp_precision_narrowing_cast

Returns true when casting a timestamp from from_type to to_type loses timestamp precision.

try_cast_literal_to_type

Convert a literal ScalarValue to target_type, preserving the exact value.